Lpi LPI Level 3 Exam 304, Senior Level Linux Certification, Virtualization & High Availability 認定 304-150 試験問題:

1. An administrator wants to be able to do a live migration of a Xen virtual machine. Which of the following statements are true? (Select TWO correct answers)

A) Live migration is only supported in SAN environments.
B) The virtual machines need to have the storage backend to the virtual disk files available on shared storage.
C) Live migration needs to be enabled in the configuration file of the virtual machine.
D) The Xen daemon's configuration file needs to be modified to make sure that live migration to this host is allowed.
E) Nothing needs to be done, live migration is supported by default.

2. How is the AMDV extension made available in a KVM environment?

A) modprobe qemu_kvm
B) modprobe kvm_amd_v
C) modprobe kvm_intel
D) modprobe kvm_amd
E) modprobe kvm_any

3. With IPVS, if this sysctl variable is set to 0, the load balancer will silently drop packets when its destination server is not available. If this variable is enabled, the load balancer will expire the connection immediately when a packet arrives and its destination server is not available.

A) expire_nodest_conn
B) drop_entry
C) drop_curr_conn
D) expire_curr_conn

4. When using HAProxy to load balance a set of web servers, what directive is needed in the HAProxy configuration to be able to log the IP of the client making the requests to the web servers?

A) option reverseproxy
B) option exposeclient
C) option forwardfor
D) option clientlog

5. When using Xen, each VM will have a configuration file matching the name of the VM. Where are these configuration files stored?

A) In the directory /etc/xen
B) Each configuration file is stored with the VM disk files.
C) In the directory /var/lib/xen
D) On a LDAP, NIS or DHCP server

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